Every species has its own important role in maintaining nature's balance. Thomas Barwick/Getty Images hide caption

itoggle caption Thomas Barwick/Getty Images

Everything Is Connected

In this hour, TED speakers explain how everything in nature is connected, and how we can restore its delicate balance.

Friday

"You exist in this galaxy, you exist around this star, you exist on this planet, you are a member of this species — and all of these are part of knowing what you are." - David Christian iStockphoto hide caption

itoggle caption iStockphoto